Yaw control device for a wind turbine



FIG. 1 is a front isometric view of a yaw control device for a wind turbine showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines throughout the drawing figures depict environmental blades that form no part of the claimed design. 

CLAIM I claim the ornamental design for a yaw control device for a wind turbine, as shown and described. 